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Chokes for data and signal lines
Double chokes
Series/Type: B82790
Date: December 2006
Data Sheet
© EPCOS AG 2006. Reproduction, publication and dissemination of this data sheet and the information contained therein without EPCOS’ prior express consent is prohibited.
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Double chokes
Rated voltage 42/80 V AC/DC
Rated current 200 to 1000 mA
Rated inductance 5 NH to 4.7 mH
Construction
■ Current-compensated ring core choke with ferrite core
■ Bifilar winding (B82790C0*)
■ Sector winding (B82790S0*)
Features
■ Case flame-retardant as per UL 94 V-0
■ Suitable for reflow soldering
Special types for conductive adhesion
and ambient temperatures up to 150°C on request
Applications
B82790C0*/S0*N2Chokes for data and signal lines
■ B82790C0*:
Suppression of asymmetrical interference coupled in on lines,
whereas data signals up to some MHz can pass unaffectedly
■ B82790S0*:
Suppression of asymmetrical and symmetrical interference
coupled in on lines. The high-frequency portions of the symmetrical
data signal are decreased so far that EMC problems can be
significantly reduced.
Terminals
■ Lead-free tinned
Marking
Manufacturer, ordering code (short form),
date of manufacture, coded (year, day of week, calender week)
Delivery mode
Blister tape, reel packing
For details on taping, packing and packing units see data book 2000
"Chokes and Inductors", page 302.
Please read Important notes at the end of this document.
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Double chokes
Dimensional drawing
1.9±0.2
2.5±0.1
0.6±0.05
B82790C0*/S0*N2Chokes for data and signal lines
0...6
4.9 max.
5.2 max.
0.2+0.2
A
7.1 max.
+0.4
_
9
0.2
Layout recommendation
(4,5)
2,5
10,2
2,85
0.25±0.05
Marking
1,2
6.0 max.
IND0009-B-E
max. 0.08
A
IND0163-B
Please read Important notes at the end of this document.
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Double chokes
Technical data and measuring conditions
B82790C0*/S0*N2Chokes for data and signal lines
Rated voltage V
R
42 VAC (50/60 Hz)
80 VDC
Rated current I
R
Rated inductance L
R
Referred to 50 Hz and 60 °C ambient temperature
Measured with HP 4275A
at L ≤ 1 mH = 100 kHz, 0.1 mA
L > 1 mH = 10 kHz, 0.1 mA
(specified per winding)
Inductance tolerance L ≤ 0.47 mH: ± 30 %
L > 0.47 mH: – 30/+ 50 %
Inductance decrease ΔL/L
Stray inductance L
stray
0
< 10% at dc magnetic bias with I
Measured with HP 4275A.
R
Measuring frequency at L ≤ 11 μH= 1MHz, 5 mA
L>11μH=100kHz, 5 mA
DC resistance R
typ
Typical values, measured at 20 °C ambient temperature
Solderability (215 ± 3) °C, (3 ± 0,3) s
wetting of soldering area ≥ 95 %
to IEC 60068-2-58
Climatic category 40/125/56 (–40 °C/+125 °C/56 days damp heat test)
to IEC 60068-1
Weight Approx. 0.3 g
Characteristics and ordering codes
L
R
mH
L
stray, typ
nH
I
R
mA
R
typ
mΩ
V
T
VDC, 2 s
Ordering code
1)
0.005 50 1000 100 250 B82790C0502N201
0.011 50 500 120 250 B82790C0113N201
0.025 150 500 130 250 B82790C0253N201
0.025 1500 500 130 250 B82790S0253N201
0.051 200 500 160 250 B82790C0513N201
0.051 2000 500 160 250 B82790S0513N201
0.470 200 500 200 750 B82790C0474N215
1.0 250 500 200 750 B82790C0105N240
2.2 250 400 400 750 B82790C0225N265
4.7 300 200 550 750 B82790C0475N265
1) Special types for conductive adhesion and ambient temperatures of up to 150 °C upon request.
Please read Important notes at the end of this document.
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IND0011-4
0
10
20
30
40
50
dB
10 10
678
10
f
Hz 10
9
e
α
10
5
B82790C0253N201
Double chokes
B82790C0*/S0*N2Chokes for data and signal lines
Insertion loss
asymmetrical, all branches in parallel (common mode)
symmetrical (differential mode)
LR = 0.005 mH
50
B82790C0502N201
dB
α
e
40
30
20
10
B
(typical values at Z = 50 Ω)
e
IND0013-6
L
= 0.011 mH
R
50
dB
α
e
40
30
20
10
IND0014-8
B82790C0113N201
0
10
10
6
10
7
108Hzf10
95
0
10
5
10
6
78
10
Hz
10 10
9
f
= 0.025 mH (low L
L
R
stray
)
= 0.025 mH (high L
L
R
50
B82790S0253N201
dB
α
e
40
30
20
10
stray
)
IND0015-W
Please read Important notes at the end of this document.
0
10
5
678
10 10
10
Hz 10
9
f
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IND0012-V
0
10
20
30
40
50
dB
10 10
678
10
f
Hz 10
9
e
α
10
5
B82790C0513N201
Double chokes
B82790C0*/S0*N2Chokes for data and signal lines
Insertion loss
B
(typical values at Z = 50 Ω)
e
asymmetrical, all branches in parallel (common mode)
symmetrical (differential mode)
LR = 0.051 mH (low LS)
L
= 0.051 mH (high LS)
R
50
B82790S0513N201
dB
α
e
40
30
20
10
IND0016-9
0
10
5
10
6
10
7
10
Hz
10
98
f
= 0.47 mH
L
R
50
B82790C0474N215
dB
α
e
40
30
20
10
IND0017-H
= 1.0 mH
L
R
50
dB
α
e
40
30
20
10
IND0018-R
B82790C0105N240
0
4
Please read Important notes at the end of this document.
5
1010
10
10
0
Hz
10
8
76
10
4
10
5
76
f
8
101010 Hz
3
f
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B82790C0*/S0*N2Chokes for data and signal lines
Double
Insertion loss
chokes
B
e
(typical values at Z = 50 Ω)
asymmetrical, all branches in parallel (common mode)
symmetrical (differential mode)
LR = 2.2 mH LR = 4.7 mH
50
B82790C0225N265
dB
α
e
IND0019-1
40
30
20
50
B82790C0475N265
dB
α
e
40
30
20
IND0020-Z
10
0
10
10
0
10
5
4
67
10
Hz
10 10
8
4
10
4
10
5
f
10
6
107Hz 10
8
f
Please read Important notes at the end of this document.
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Important notes
The following applies to all products named in this publication:
1. Some parts of this publication contain statements about the suitability of our products for
certain areas of application. These statements are based on our knowledge of typical
requirements that are often placed on our products in the areas of application concerned. We
nevertheless expressly point out that such statements cannot be regarded as binding
statements about the suitability of our products for a particular customer application. As
a rule, EPCOS is either unfamiliar with individual customer applications or less familiar with them
than the customers themselves. For these reasons, it is always ultimately incumbent on the
customer to check and decide whether an EPCOS product with the properties described in the
product specification is suitable for use in a particular customer application.
2. We also point out that in individual cases, a malfunction of passive electronic components
or failure before the end of their usual service life cannot be completely ruled out in the
current state of the art, even if they are operated as specified. In customer applications
requiring a very high level of operational safety and especially in customer applications in which
the malfunction or failure of a passive electronic component could endanger human life or health
(e.g. in accident prevention or life-saving systems), it must therefore be ensured by means of
suitable design of the customer application or other action taken by the customer (e.g.
installation of protective circuitry or redundancy) that no injury or damage is sustained by third
parties in the event of malfunction or failure of a passive electronic component.
3. The warnings, cautions and product-specific notes must be observed.
4. In order to satisfy certain technical requirements, some of the products described in this
publication may contain substances subject to restrictions in certain jurisdictions (e.g.
because they are classed as “hazardous”). Useful information on this will be found in our
Material Data Sheets on the Internet (www.epcos.com/material). Should you have any more
detailed questions, please contact our sales offices.
5. We constantly strive to improve our products. Consequently, the products described in this
publication may change from time to time. The same is true of the corresponding product
specifications. Please check therefore to what extent product descriptions and specifications
contained in this publication are still applicable before or when you place an order.
We also reserve the right to discontinue production and delivery of products.
Consequently, we cannot guarantee that all products named in this publication will always be
available.
6. Unless otherwise agreed in individual contracts, all orders are subject to the current version
of the “General Terms of Delivery for Products and Services in the Electrical Industry”
published by the German Electrical and Electronics Industry Association (ZVEI).
7. The trade names EPCOS, EPCOS-JONES, Baoke, Alu-X, CeraDiode, CSSP, MLSC,
PhaseCap, PhaseMod, SIFI, SIFERRIT, SIKOREL, SilverCap, SIMID, SIOV, SIP5D, SIP5K,
UltraCap, WindCap are trademarks registered or pending in Europe and in other countries.
Further information will be found on the Internet at www.epcos.com/trademarks.
8 12/06
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